甜槠群落主要种群空间分布格局对人为干扰的响应

The Response of Spatial Distribution Pattern of the Main Population of Castanopsis eyrei Communities to Human-caused Disturbance

研究了不同人为干扰强度对甜槠天然群落中主要种群甜槠和赤楠的分布格局的变化动态,结果表明,人为干扰会使甜槠种群的聚集性加强,而赤楠种群的聚集性降低,干扰强度对甜槠聚集性的影响随树龄的增大而逐渐减小,而对赤楠聚集性的影响则是随林龄增大呈现由小→大→小的规律。

The dynamic state in response to human-caused disturbance of Castanopsis eyrei and Syzygium buxifolium populations was investigated after a study of the spatial distribution pattern of several main populations in Castanopsis eyrei communities. The results show that human-caused disturbance improved the aggregated nature of Castanopsis eyrei population but reduced that of Syzygium buxifolium population. With increasing tree ages, the effects of disturbed intensity on the aggregated nature of Castanopsis eyrei lessened gradually and the effects on that of Syzygium buxifolium were from small to big and to small.